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forestry
According to the international methods of pest risk analysis and urban forestry characteristics in Beijing, a quantitative risk assessment system in Beijing for three primary non-indigenous pests was proposed.
      
Eco-emigration and the return of marginal agricultural land to forestry can be practiced.
      
This study was conducted at Maoershan Forest Research Station (45°21'-45°25'N, 127°30'-127°34'E) owned by Northeast Forestry University in Harbin, northeast China.
      
The Maoershan forestry centre is situated in the Zhangguangcai Mountain of the Changbai mountain range.
      
Following the principles of runoff-collecting forestry and applying the forest structure investigation results, the authors developed a formula to calculate appropriate density for forests on the basis of different diameters at breast height (DBH).
      
All their specimens are deposited in the insect specimen laboratory of the Department of Resources, Southwest Forestry College (Kunming, China).
      
gmelinii plantation in Maoershan Experiment Station, Northeast Forestry University, China.
      
Advances in ecological plant physiology are reviewed in brief and its significance for agriculture and forestry is discussed.
      
Cytogenetic variation was analyzed in daughter populations of Scotch pine from the Voronezh Forestry.
      
Demonstrative imitations in the defensive behavior of grass snakes (Natrix natrix) captured in the Galich'ya Gora Reserve (70 ind.) and Kulikovskii Forestry (13 ind.), Lipetsk oblast, have been analyzed using statistical methods.
      
The trees were sown in 1928-1930 in the Mokhovoe Forestry of Orel oblast (the Shatilovo Forest).
      
Digital Forestry as a concept was developed after the Digital Earth program.
      
The Chinese scientists were not only among the pioneers who first proposed the concept of Digital Forestry, but also contributed a lot to the development of Digital Forestry.
      
Digital Forestry is a digital framework to maintain forest planting, management, using, and protect.
      
The synergetic use of computationally-intensive quantitative methods together with information technologies is the most important foundation for the development of Digital Forestry.
      
Under this situation, the experience of Digital Forestry development in China is relatively rich.
      
A number of academicians, scholars, and professional administrators were involved in discussing the Digital Forestry Construction Scheme.
      
The Project of Digital Forestry Practicability approved by the State Forestry Administration is a major instance in developing Digital Forestry standard and key techniques.
      
By introducing a case study of Digital Forestry, this paper reviews the concept of Digital Forestry, the way turning traditional forestry into Digital Forestry, and the future development of Digital Forestry.
      
Traditional forest management within a forestry unit in China is planned on a yearly basis.
      
 

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